Leroy s



(No Model.)

L. S. LEWIS. APPARATUS FOR PURIFYING WATER.

No. 472,641. PatentedAprL 12, 1892.

THE. News versus co, PHOTO-LITHD., vusnmumn, n. c.

UNITED STATES PATENT OFFICE.

LEROY S. LEW'IS, OF EAST HARTFORD, CONNECTICUT, ASSIGNOR TO HARRIS B.MITCI-IEL, OF MALDEN, MASSACHUSETTS.

APPARATUS FOR PURIFYING WATER.

SPECIFICATION forming part of Letters Patent No. 472,641 dated April 12,1892. Application filed March 24, 1891. Serial No. 386,198. (No model.)

To all whom, it may concern,- ing-chamber to permit the free escape Ofthe Be it known that I, LEROY S. LEWIS, a citivapor generated from. thewater, and where zen of the United States, residing at East this tubepasses through the chamber c it is Hartford, in the county of Hartfordand State surrounded by a jacket of non-heat-conduct- 5 of Connecticut,have invented certain new ing material, as asbestos, which is held inand useful Improvements in Apparatus for place by a larger tube a toprevent the colder Purifying WVater, of which the following is a waterin the supply-chamber from condensfull, clear, and exact specification.ing the vapor before it passes out of the tube.

The invention relates to the class of appa- The tube a above thevaporizer is preferably IO ratus for freeing water fromchemically-disenlarged, forming a chamber a to allow a solved andmechanically-suspended impurifree expansion of the vapor or steam, so itties; and the object is to provide a simple, may free itself from anyglobules of unvaporcheap, and easily-operated apparatus of this ized orboiling liquid and not carry it along class requiring but littleattention, whereby the tube (V, which connects the vaporizer with I 5all animal and vegetable bacteria and organthe portable tubularair-condenser l). This isms will be destroyed and water suppliedcondenser consists of a number of tubes archemically pure and fullyaerated, so as to ranged in circles vertically, or nearly so, bepalatable. 7 opening at their upper end into a conical The inventionresides in details of the conchamber 1) and at their lower end into acham- 2o struotion of the apparatus whereby this reher 12 The tube whichis connected with the sult can be obtained simply and continuously tubefrom the vaporizer preferably projects without constant attendance, asmore particuinto the conical chamber nearly to the apex, larlyhereinafter described, and pointed out which is preferably provided witha threaded in the claim. cap 5 that can be removed when desired, 2 5Referring to the accompanying drawings, while all of the remainingtubes, except the Figure 1 is a side view of the apparatus. central oneb project into this chamber but Fig. 2 is a vertical section, onenlarged scale, a slight distance above the bottom, which is of theportable tubular condenser. Fig. 3are convexed, so that the water ofcondensation sections at the top and bottom of the tubes of whichcollects in this chamber willrun to the a the condenser. Fig. 4 is avertical section of central tube and through that to the chamber thevaporizer. Fig. 5 is a plan view of the 12 The central tube opensdirectly ove an th ti -tra outlet-tube 6 that depends from the con- Inthe views, the letter a indicates a vaporvexed bottom of the chamber 1)and supports izer, adapted to be placed over any source of a cup 5having side walls, which rise to a 5 heat, as a common cook-stove s oran oil or gas higher level than the lateral openings b burner, asconvenient. This vaporizer, which through the outlet-tube, so that thewater is made of thin metal, preferably consists of which passes throughthe openings fills the a large upper chamber a, having an inlet a cupbefore running over, and seals the outlet for receiving and holding thesupply of water to prevent the escape of vapor or steam. Be- 0 40 to bepurified, through the center of which low this cup 5 to receive thewaterwhich passes a tube a to a smaller heating-chamoverflows its walls, isplaced an aerating-tray her that is adapted to rest directly over the c.This tray is supported at a slight incline source of heat. A small pipeof, usually bent by brackets connecting the legs b depending in severalcoils, connects the lower part of from the bottom of the condenser, andits 5 45 the chamber a with the lowest part of the bottom surface isroughened by ridges d chamber a so that as the water in this latterbosses 0 in order that the water of condenchamber is vaporized and thevapor rises sation which escapes from the condenser will through thetube a water from the supplyspread out ina sheet, and in running slowlyto chamber enters through the pipe d to keep the receiving jar, barrel,or other receptacle d 50 the heating-chamber full. The tube a passeswill be obliged to travel an uneven and broken from the center andhighest part of the heatcourse, so that all portions will be broughtinto contact with and subjected to the influence of the atmosphere,whereby the purified water, which has lost its air during the boiling,will again absorb oxygen and become palatable.

Any kettle or common vaporizer may be used in which to generate steam;but with that form shown the vapor can be generated quicker than with anordinary vessel. ater from the supply-chamber a passes through the pipea to the heating-chamber a and the vapor generated collects at theconvexed top of this chamber and passes upward through the tube to thechamber a, where it parts with its moisture and passes to the chambersof the condenser and is condensed by contact with the sides of the tubesthrough which it circulates. The vapor which collects in the conicalupper chamber is drawn into the tubes by the condensation of the vaporwhich comes in contact with their sides, as their extent of surfaceexposed to the atmosphere permits a rapid radiation of heat. The waterof condensation in the upper chamber passes through the tube 1) to thechamber b while the condensed vapor in the tubes passes directly to thischamber and escapes through the trapped outlet at the bottom and overthewalls of the cup into the aerating-tray. From this tray, where it isaerated, the purified water is allowed to run into any suitablereceptacle to remain until used.

The vaporizer can be placed on any stove or over any gas or oil burner,while the condenser, which occupies but little ground-space, can bemoved to any closet or cellar at a distance from the source of heat andbe connected by fixed pipes, so that a quantity of pure water fullyaerated may continually be making and a supply always kept on handwithout any particular attention or attendance. When the vaporizer-tubeis disconnected from the condenser and the cap at the apex of the upperchamber of the latter is removed, the tubes, beingheated, cause acurrent of air to pass through them, which dries out all moisture. Ofcourse the boiling of the water destroys all bacteria and disease-germs,and the vapors leave all mineral and other foreign substances insolution or mechanically suspended in the vaporizerand the water reachesthe aerating-tray in a pure state. of the condenser are quite thin and,having considerable surface, readily part with their heat, so they donot become hot enough to render them useless.

I claimas my invention- A water-purifier consisting of a vaporizer, acondenser connected therewith, having a series of vertical steam-tubesconnecting two chambers and surrounded by the atmospheric air, atrap-outlet from the lower chamber, an inclined aerating-tray locatedbelow the trapoutlet and provided with an embossed and ridged uppersurface on the upper face of its bottom, whereby an unevenness isprovided, over and around which the purified water must pass to thereceiving vessel or receptacle, substantially as specified.

LEROY S. LEWIS.

Witnesses:

HARRY R. WILLIAMS, JOHN P. HEALY.

The tubes

